Unexpected multifunctional effects of methylated cyclodextrins in a palladium charcoal-catalyzed Suzuki-Miyaura reaction

被引：59

作者：

Cassez, Andy ^{[1
]}

Ponchel, Anne ^{[1
]}

Hapiot, Frederic ^{[1
]}

Monflier, Eric ^{[1
]}

机构：

[1] Univ Artois, Fac Sci Jean Perrin, CNRS,Federat Chevreul, Lab Phys Chim Interfaces & Applicat, F-62307 Lens, France

来源：

ORGANIC LETTERS | 2006年 / 8卷 / 21期

关键词：

CROSS-COUPLING REACTIONS; AQUEOUS ORGANOMETALLIC CATALYSIS; ARYLBORONIC ACIDS; ARYL BROMIDES; NANOPARTICLES; WATER; HECK; CARBON; DERIVATIVES; LIGANDLESS;

D O I：

10.1021/ol061836v

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Native and modified cyclodextrins (CDs) have shown polyvalent properties in a biphasic Pd/C-catalyzed Suzuki-Miyaura reaction. In addition to their mass transfer ability, the CDs favored the dispersion of the catalyst in water. With the randomly methylated CDs (RaMe-beta-CD), the gains of initial activities were multiplied by factors between 3.8 and 343 depending on the nature of the substrates. The reusability of the system was also demonstrated.

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页码：4823 / 4826

页数：4

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